← Back to Learning Hub

Probability & Statistics

MathStatisticsBeginner25 min

By: Anacodic Team

Share: X · LinkedIn · Copy Link

Probability and Statistics

Probability Distributions

Discrete Distributions

  • Bernoulli distribution
  • Binomial distribution
  • Poisson distribution
  • Geometric distribution
  • Uniform discrete distribution

Continuous Distributions

  • Uniform distribution
  • Normal (Gaussian) distribution
  • Exponential distribution
  • Beta distribution
  • Gamma distribution

Distribution Properties

  • Probability density function (PDF)
  • Cumulative distribution function (CDF)
  • Mean, variance, standard deviation
  • Skewness and kurtosis
  • Moments of distributions

Bayes' Theorem

Conditional Probability

  • Definition of conditional probability
  • Joint probability
  • Marginal probability
  • Chain rule

Bayes' Theorem

  • Statement of Bayes' theorem
  • Prior probability
  • Likelihood
  • Posterior probability
  • Bayesian inference

Applications

  • Naive Bayes classifier
  • Bayesian networks
  • Bayesian parameter estimation
  • Medical diagnosis

Hypothesis Testing

Concepts

  • Null hypothesis (H0)
  • Alternative hypothesis (H1)
  • Type I and Type II errors
  • Significance level (α)
  • p-value
  • Power of a test

Common Tests

  • t-test (one-sample, two-sample, paired)
  • Chi-square test
  • ANOVA
  • Z-test
  • Mann-Whitney U test

Test Selection

  • Parametric vs non-parametric tests
  • Assumptions for each test
  • When to use which test

Confidence Intervals

Concepts

  • Point estimates
  • Interval estimates
  • Confidence level
  • Margin of error

Construction

  • Confidence interval for mean (known variance)
  • Confidence interval for mean (unknown variance)
  • Confidence interval for proportion
  • Bootstrap confidence intervals

Interpretation

  • What confidence intervals mean
  • Common misconceptions
  • Relationship to hypothesis testing

Practice Questions

Test your understanding with the questions in the interactive quiz below (when available).

Resources